(Frigate birds) may be built for flying.Logical formLearned from2 sentences. Some frigates may be replaced.Logical formLearned from2 sentences. Some frigates of some guns may be ordered at a same time.Logical formLearned from2 sentences. A design can be as a frigate.Logical formLearned from2 sentences. A frigate may be launched on a month.Logical formLearned from2 sentences. A frigate may be decommissioned.Logical formLearned from2 sentences. A frigate may enter a shipyard.Logical formLearned from2 sentences. A frigate can be under (jury masts).Logical formLearned from2 sentences. A frigate can be in service.Logical formLearned from2 sentences. A frigate can be completed.Logical formLearned from2 sentences. A frigate may be sold to a country.Logical formLearned from2 sentences. A (-class frigate) can be in a military-or-other-action-organization.Logical formLearned from2 sentences. Boats may pertain-to a frigate.Logical formLearned from2 sentences. A male may be attacked by a frigate.Logical formLearned from2 sentences. A (reporting name) can be for a class of frigates.Logical formLearned from2 sentences.